identity.rs

//  Copyright (C) 2018  The Duniter Project Developers.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

//! Wrappers around Identity documents.

use duniter_crypto::keys::{PublicKey, ed25519};
use regex::Regex;

use Blockstamp;
use blockchain::{BlockchainProtocol, Document, DocumentBuilder, IntoSpecializedDocument};
use blockchain::v10::documents::{StandardTextDocumentParser, TextDocument, TextDocumentBuilder,
                                 V10Document, V10DocumentParsingError};

lazy_static! {
    static ref IDENTITY_REGEX: Regex = Regex::new(
        "^Issuer: (?P<issuer>[1-9A-Za-z][^OIl]{43,44})\nUniqueID: (?P<uid>[[:alnum:]_-]+)\nTimestamp: (?P<blockstamp>[0-9]+-[0-9A-F]{64})\n$"
    ).unwrap();
}

/// Wrap an Identity document.
///
/// Must be created by parsing a text document or using a builder.
#[derive(Debug, Clone)]
pub struct IdentityDocument {
    /// Document as text.
    ///
    /// Is used to check signatures, and other values
    /// must be extracted from it.
    text: String,

    /// Currency.
    currency: String,
    /// Unique ID
    unique_id: String,
    /// Blockstamp
    blockstamp: Blockstamp,
    /// Document issuer (there should be only one).
    issuers: Vec<ed25519::PublicKey>,
    /// Document signature (there should be only one).
    signatures: Vec<ed25519::Signature>,
}

impl IdentityDocument {
    /// Unique ID
    pub fn unique_id(&self) -> &str {
        &self.unique_id
    }
}

impl Document for IdentityDocument {
    type PublicKey = ed25519::PublicKey;
    type CurrencyType = str;

    fn version(&self) -> u16 {
        10
    }

    fn currency(&self) -> &str {